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Only the finest dealers are approved to offer this product. Your purchasing experience should be worthy of a loudspeaker such as this, and should come with matching levels of service and support. Therefore upon inquiry or purchase of The Reference through KEF Direct, a KEF concierge will contact you to facilitate product shipment and delivery.

The standards of architectural speakers have been reset forever. We introduce the in-wall KEF Ci5160REF-THX - the newest addition to THE REFERENCE family, meeting KEF’s standards for Extreme Theatre as well as THX Ultra2 Certification.

Priced as a single speaker.

Note: All Reference products are made to order. Expected build time is 8-10 weeks.

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Availability: In stock


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The KEF Ci5160REF-THX is built to the same exacting standards as the KEF REFERENCE models. And like all REFERENCE speakers, the Ci5160REF-THX comes with the REFERENCE Build Certificate signed by the craftsman who built it.
KEF REFERENCE Ci5160REF-THX In-Wall Home Theater Speaker
KEF Ci5160REF-THX In-Wall Home Theater Speaker Uni-Q DriverUni-Q Driver Array

At the heart of the Ci5160REF-THX is the 12th generation of the KEF’s signature innovation: the Uni-Q point source MF/HF driver array. With a 25mm vented aluminium dome tweeter at the exact acoustic centre of a 125mm mid-range driver, both act as a single source that floods the listening space evenly with a flawless natural sound field.
Bass Drivers

Like everything else about THE REFERENCE, the bespoke 165mm LF driver optimised for use in-wall, is a class apart. With a massive vented magnet assembly and a large aluminium wire voice coil driving an exceptionally light, stiff and strong alloy cone, the dynamics and power handling are superb.
KEF Ci5160REF-THX In-Wall Home Theater Speaker Bass Driver
KEF Ci5160REF-THX In-Wall Reference Home Theater Speaker CrossoverCrossover

KEF engineers computer-modelled the ideal crossover networks before exhaustively auditioning every high-grade component to select those with the lowest distortion and the smoothest response. Perfectionism takes time, but the difference is clear. Nothing is overlooked – the HF and LF crossovers are even mounted on separate boards to minimise crosstalk.


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Model Ci5160REF-THX
Nominal Impedance
Sensitivity (2.83V/ 1m) 90dB (2.83V/ 1m)
Frequency response (±6dB)
40Hz - 28kHz (±6dB) open backed
Crossover frequency 400Hz, 2.8kHz
Drive units
4 x 160mm (6.5 in.)
160mm (6.5 in.)
25mm (1 in.) Uni-Q
Recommended Amplifier Power 40 - 500W
Product external dimensions
(H x W x D)
1070 x 230 x 105.7 mm
(42.13 x 9.06 x 4.16 in.)
Cut-out dimensions
(H x W)
1052 x 209mm (41.42 x 8.23 in.)
Net Weight 22.0 kg (48.5 lbs)
Mounting depth from surface 99mm (3.9 in.)
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.

THX, the THX logo, and Ultra2 are trademarks of THX Ltd. THX and the THX logo are registered in the U.S. and other jurisdictions. All rights reserved.
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